Jeanne C. Sinkford

Long-range effects of Ivalon sponge containing isobutyl cyanoacrylates on rat tissue: A quantitative planimetric study☆

This study on seventy rats was undertaken to determine the long-range effects of Ivalon sponge containing isobutyl cyanoacrylates (IBC). Histologic examination revealed that IBC sponge was well tolerated by the connective tissue. IBC sponge was most effective during the first 2 weeks of healing. At observation periods of 1 and 2 weeks, the percentage values for connective tissue formed in IBC-treated animals were 2.02 and 1.58 times higher than those in the untreated animals.

Tissue response to intraosseous implants in albino rats.

Abstract The purpose of this study was to determine changes in the soft or hard tissue surrounding isolated intraosseous implants. Implant screws were machined to uniform dimension from three gold-base alloys, two cobalt-base alloys, two stainless steel, and one platinum-iridium alloy. Adult, male albino rats (375 to 475 grams) were used. Perforations were made on the lateral aspect of the femur bone by means of friction-grip, round carbide burs, and screws were placed loosely in the perforations. Each animal received one implant only. Sham-operated controls were included for each group. Animals were killed at intervals of 1, 2, 3, 4, and 5 weeks. Longitudinal sections of the bone (with respect to the longitudinal axis of the implant) were stained with hematoxylin and eosin. A layer of connective tissue was present surrounding all implants. This capsule differed according to the type of metal and the duration of implantation. The formation and maturation of new bone appeared to have begun in the spiral adjacent to the periosteal end of the screw and to have proceeded toward the apex of the screw. Implants were completely encapsulated by newly formed bone at the end of the fourth week. The rate of formation of bone appeared to be higher in the control wounds. On the basis of the amount of bone formed around the implants, cobalt-base and stainless steel alloys were found to be more suitable for implantation than the other materials tested.

Women’s Oral Health: Growing Evidence for Enhancing Perspectives

Womens health, including oral health, is an evolving science with foundation knowledge from many disciplines. Key milestones, particularly in the last decade, provide a roadmap towards the necessary inclusion of gender into dental practice. Such focus is especially important for the evolving role of oral health care providers as primary health care providers. Continued progress of the vibrant incorporation of evidence-based womens oral health into the standard practice of oral health care is encouraged. This expanded preface provides an introduction to this DCNA issue, a brief history and timeline of major womens oral health events, and resources for further consideration.